Ok I started a call using regular cell service, it swtiched over to Wifi. this happened when I was checking my voicmail. After the switch over I went to input my password but it wouldn't take it kept asking me to enter my password even though I tried a few times. then I just ended the call but instead of hanging up it turned on the speaker phone and went back to the home screen there was NO way to end the call. I tried again and the same thing happened. Anyone else experience this?

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